We're looking for investors with 'pockets' that are deep enough to pay for the project. [=investors with enough money to pay for the project]
People 'vote their pocketbooks'. [=people vote according to how a candidate or issue will affect their financial situation]
It turned out that they had 'pocketed' [='stolen'] most of the money that was supposed to go to victims of the fire.
(..) - Pull up a chair. - What are you doin'? You'll see. Come on, be here. - Oh, yeah. - ''I put my hand in his pocket--'' '' Never wanted more than a rocket!'' It's Red! - Maddy, it's Rita! - Yeah. - Can you talk to her? (..)1996 Foxfire